GUI_GET_DESKTOP_INFO ( why it's not workiing in BSP ? )

hi if i use the following module in SE38 editor

GUI_GET_DESKTOP_INFO.

it's retuning the value .

But if i use the same in BSP it's throwing the foll error ,

An exception with the type CX_SY_DYN_CALL_PARAM_NOT_FOUND occurred, but was neither handled locally, nor declared in a RAISING clause

Why it's like this ?

I want to get terminal name form my BSP .

Evn RFC_IP_TO_HOST fn mod is not wroking from BSP ?

Wht might be problem >

rgds

J